PFP is invisible

[synner]

so i have 2 of the same images for my pfp, one is darker (more contrast and edits which is to have it look clearer as a small image) the other one is unchanged and doesnt look as good to me, however the darker one is invisible when i use it, with the normal image being fine, the darker one was working fine yesterday but isnt today, im not entirely sure why, maybe encoding on the image? it also is invisible in games that use your PFP, like tf2. both images will be at the imgur link https://imgur.com/a/VRBcsNo